Taxon Details
Castilleja densiflora var. obispoensis
San Luis Obispo owl's-clover
View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist
© 2010 Aaron E. Sims |
© 2010 Aaron E. Sims |
© 2010 Aaron E. Sims |
Taxon Summary:
Castilleja densiflora var. obispoensis, commonly known as San Luis Obispo owl's-clover, is a annual herb (hemiparasitic) in the Orobanchaceae that is found only in California. It occurs within Meadows and seeps, and Valley and foothill grassland, growing at elevations from 10 to 430 meters. Castilleja densiflora var. obispoensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Castilleja densiflora (Benth.) T.I. Chuang & Heckard var. obispoensis (D.D. Keck) J.M. Egger |
||
|
Common Name: San Luis Obispo owl's-clover |
||
| Family: | Orobanchaceae | |
| Element Code: | PDSCR0D453 | |
| USDA Plants Symbol: | ||
|
Synonyms/Other Names: |
||
| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
|
| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G5T2 |
|
State Rank: |
S2 |
| Other Status: | BLM_S; SB_SBBG |
|
CRPR Changes: |
|
| Add Date: | 2001-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: annual herb (hemiparasitic) | ||||||||||||||
Blooming Period: Mar-May
|
||||||||||||||
|
Elevation:
10 - 430 meters 35 - 1410 feet |
||||||||||||||
General Habitats:
|
||||||||||||||
| Microhabitat Details: | ||||||||||||||
Microhabitat:
|
||||||||||||||
|
Notes: Threatened by development and grazing. See C. densiflora ssp. obispoensis in TJM 2. See Proceedings of the California Academy of Sciences IV 16:539 (1927) for original description, and Systematic Botany 16:656 (1991) and Phytologia 90(1):63-81 (2008) for revised nomenclature. |
|
|
Threats: |
|
|
Taxonomy: |
|
| Threat List Total: | 14 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 30 | 43 % |
| THREAT LIST: | ||
|---|---|---|
| Non-native plant impacts | 18 | 26% |
| Development | 12 | 17% |
| Grazing | 12 | 17% |
| Improper burning regime | 10 | 14% |
| Military operations | 9 | 13% |
| Feral pigs | 9 | 13% |
| Foot traffic/trampling | 3 | 4% |
| Erosion/runoff | 3 | 4% |
| Wood cutting or brush clearing | 3 | 4% |
| Recreational use (non-ORV) | 2 | 2% |
| Road/trail construction/maint. | 2 | 2% |
| Other | 1 | 1% |
| Biocides | 1 | 1% |
| Hybridization | 1 | 1% |
| Total Occurrences: | 69 | ||||
| Element Occurrence Ranks: | |||||
|---|---|---|---|---|---|
| A | B | C | D | X | U |
| 5 | 12 | 11 | 3 | 0 | 38 |
| Occurrence Status: | |||||
|---|---|---|---|---|---|
| Historical >20 Years | 48 | ||||
| Recent <=20 Years | 21 | ||||
| Presence: | |||||
|---|---|---|---|---|---|
| Presumed Extant | 69 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
|
States: Name (Code) California (CA) |
|||||||||||||
|
California Counties and Islands: Name (Code) San Luis Obispo (SLO) |
|||||||||||||
|
Quads: Name (Quad Code) Adelaida (3512067), Arroyo Grande NE (3512025), Bradley (3512077), Cambria (3512151), Cayucos (3512048), Lopez Mtn. (3512035), Morro Bay North (3512047), Morro Bay South (3512037), Oceano (3512015), Paso Robles (3512066), Pico Creek (3512152), Piedras Blancas (3512163), Pismo Beach (3512026), Port San Luis (3512027), San Luis Obispo (3512036), San Simeon (3512162), Santa Margarita (3512045) |
|||||||||||||
Notes:
|
|||||||||||||
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel